Cov khoom tseem ceeb ntawm cov iav xim yog purified quartz xuab zeb thiab potassium feldspar, albite, lead oxide (cov ntsiab lus ntawm iav), ntsev (potassium nitrate: KNO3; txias), alkali hlau, alkaline ntiaj teb hlau (magnesium chloride: MgCl, melting pab. , ua kom durability), aluminium oxide (ua kom ci ntsa iab thiab chemical durability) Chromogenic cov neeg ua haujlwm ntawm ntau yam xim (xws li daj ntsuab ntawm hlau oxide, xiav ntsuab ntawm tooj liab oxide, thiab lwm yam) thiab qhia meej cov neeg sawv cev (dawb arsenic, antimony trioxide, nitrate, sulfate. , fluoride, chloride, cerium oxide, ammonium ntsev, thiab lwm yam).Crystal iav yog yaj ntawm qhov kub ntawm 1450 ° C, thiab cov iav artworks yog tsim los ntawm qhov kub thiab txias ntawm 850 ° C ~ 900 ° C los ntawm cov txheej txheem zoo ntawm dewaxing thiab xim sib tov casting.Hauv lus Askiv, iav uas muaj cov hmoov txhuas feem ntau hu ua siv lead ua lossis siv lead ua iav vim nws qhov kev xa tawm thiab kev pom tseeb, uas zoo ib yam li cov khoom siv lead ua.Hauv Suav teb, nws yog hu ua iav.Raws li ib yam ntawm cov xim siv lead ua iav, qhov kev faib ua feem ntawm cov khoom siv lead ua ntxiv rau cov iav xim (ua rau cov khoom iav muaj qhov ntsuas siab refractive thiab zoo li pob tshab thiab ci. Tam sim no, feem ntau ntawm cov khoom siv rau casting muaj ntau tshaj 24%).Cov ntsiab lus txawv ntawm ib lub tebchaws mus rau ib lub tebchaws, xws li 10% hauv European Union thiab 24% ~ 40% hauv Czech koom pheej.Feem ntau hais lus, thaum qhov kev faib ua feem ntawm cov hlau lead oxide nce mus txog ntau dua 24%, lub iav muaj qhov sib kis tau zoo thiab qhov cuam tshuam tsis zoo, thiab kuj hnyav dua thiab softer.
Qhov tsis meej pem ntawm cov npe ntawm cov iav xim thiab nws cov derivatives muaj feem xyuam hauv keeb kwm tau ua rau kev nkag siab yuam kev ntawm cov iav xim."Glazed pobzeb" thiab niaj hnub "Boshan ua cov iav xim" yog cov piv txwv pom tau zoo tshaj plaws.
Post lub sij hawm: Sep-13-2022